A032993 If d,e are consecutive digits of n in base 11, then |d-e|>=4.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 17, 18, 19, 20, 21, 28, 29, 30, 31, 32, 40, 41, 42, 43, 44, 52, 53, 54, 55, 56, 64, 65, 66, 67, 68, 76, 77, 78, 79, 80, 88, 89, 90, 91, 92, 99, 100, 101, 102, 103, 104, 110, 111, 112, 113, 114, 115, 116